Knitting-machine.



Patented Dec. 19, 3916.

2 SHEETSSHEETI flay/wanton- Geoizge 190s wont/w,

G, P. BOSWURTH.

KNITTING MACHINE.

APPLICATION FILED MAY s. 1916.

1 99,257. Patented Dec. 19, 1916.

2 SHEETS-SHEET 2- sum" . 3 fiauentoh' Y 62207399 flfiasworzh,

GEORGE R BOSWORTH, OF CENTRAL FALLS, RHODE ISLAND, ASSIGNOR HEMPHILL MANUFACTURING CQ., A CORPGRATION OF RHODE-ISLAND.

KNITTING MACHINE.

Specification of Letters Patent.

Fetented Dee. ill, ltlld.

Original application filed June 29, 1915, Serial No. 37,022. Diiricierl and this application filed May 5, i

' Serial No. 95,642;

T alluhom it may 0021mm;

Be it known that I. GEORGE Pqlloswon'rn, a CltlZGIl of the United States, and resident of (,entral'lialls. Rhode Island. have inventw The present specification isa division of ed certain he and useful improvements in Knitting-Miehines, of which the fo-llowing is a specification.

that forming a part of application. for Let- 'teirs Patent of the United States, Serial Number 37.022, filed June 29, 1915, and it concerns features relating to the presser means forspring beard needle lmitting me- (blues. 7 Y V T he invention consists in the features and combination and arrangement ofparts hereiuattei' described and pfil'ilijlllzlily pointed. out in the zippended claims.

' 'In the drawingf, Figure lis a seetionsl view of part of a needle cylinder showing a part of my iniprm'einents. Fig. detail view of a needle presser, "web holder, and their beds. and a part. of the needle cylinder,

the needle being pressed; 3 is :1 view like Fig. 2 with the web holder partly re-' tracted. and theueedle also ptiitlqi retracted, the new loop length being measured off over the top of the web holder. The presser' is also retracted in this view. Fig. 4.: is e. VlBAV like Figs. 2 and 3 with the web holder retracted and the new loop drawn into the fabric; F in. IS a view of part of the needle bed and web holder bed in seetion. and the ring which supports the pressers, illustrated as having been removed from its place be tween the cylinder and web holder bed. some of the pressers being shown in place inthe said ring. Fig. 6 is a perspective view in section of a portion ofthe Web holder bed; Fig. '7 is a perspective view in section of pr. tof the presser carrying ring; Fig. 7 is a detail sectional view of the said rin Fig. 8 is a plan View hf the knitting head wlth'parts brokenaw; 45.

In the jdrawlngs, 1 indicates the needle cylinder grooved externally, and hav ng fixe'dthereto to rotate therewith; a. bed 2 for ,t11e ip1-ess is 3 andfOr'webholders 4;. Thei "web holders slideradially and-are operated by the cam d which, 'as in thewell known Banner machine, is substantially fixed in relation to the needle cylinder, having only a liinited rotz'iry or shifting movement to .ccord with the shifting of the point at which the stitches are formed in heel and toe work, said cam being" held after this limited shifting movement has takenplaeo by the stops 5 coming against a lixed' part" part of lily-invention I provide a lulerun'i ring or cage mentioned above in which the sa d pressers are mounted and which nlio'rds means tor securing, accurate moven'ients ol the pres i I ZS as will be hereinafter noted. 1'

The pressers are formed 'wiitli depending stem portions and upper head oortions the latter extending ii'mardlv from the stem portions and presenting proper edge faces to receive and press the n aedle hea la. The head portions of the pres 1 'are. 1e. eled at top and bottom to prev the beards from striking a surface at 1' angles to their line of movement. whiel'. .d cause breakage of the beards and preferably the upper inclined fir-(re. and the inner faces ot'the pressers are grooved us indigated in dotted lines at to better control. the beards,

The web holder bed,

and which presents other adthough the invention is not. limited in thi .m

respect. The pressers are nlso shouldered. at 13*. leaving the back of the head in pro er relation to be engaged by the presser cam 10 adjustabl}: secured at 11 to the 'Y'Qlat-ll'ill) fixed cam ring l above mentioned.

' bed for the web holders is recessed at 12 to receive the cage 8, which carries the series of pressers and furnishes the fulcrum tli for, said cage resting on the ledge 1'3 oi the bed at the bottmn of the recess. The cage is of special formation and is adapted to earry as a body, the whole series of presseii's The so that these pressers tan-be assembled: in

the. cage while the same is 'a-part from its seatinthe bed '2. end then it, together with the whole series of pressers mountedthere on. can be inserted into the recess so that the vholes'eries of pressers are made to assume 3 proper position in relation to the needles and web holders. or the whole series oi? pressers can be removed as one body by taliing' the Cage out from tlie'recess in the b and in placing it or removing it, it is onl portion and a slotted portion 8 in the slots ofwhich the pressers 3 are held by a spring .barid 3 snrroundmg the cage and fitting 1n notches of the pressers neartheir lower portions, the cage along 1ts slotted -wall being" grooved as at 8 to receive said spring band.

', The slotted portion of the cage extends'up above the solid ring; portion and affords lateral support for the pressers and guidance.

at the upper portions oftheir stems.- The upper edge of the solid ring portion affords onwhich the inner face of the stem of the an-edge 8 which serves as av fulcrum point presser bears andabout which it turns when operatedln one direction by the presser cam 10, i. e.,-1 nWardly for pressing or outwardly.

under the action of the spring band. (hen thepresser is in retracted position shown-in Figs. 1, 3, 4, and 5,'the inner edge of the stem bears on the outer face of the intact ring or body portion 8 of the cage, being held in this position by the spring band 3.

stem of the presser tapers downwardly,

I are interspaced. The needles,

""f-fpreSSer by this action.-

' in and out at proper times.= out of work the presser cams are retracted e5 pressers are held purpose, or any presser may and there is suflicient space between its outer edge and the inner wall of the recess to alplow this stem to move outwardly when the head rp'ortion of thepresser is moved inwardly by the cam. The recess is of proper size alsoito accommodate the spring band.

The cage needs nomeans for holding it in position, it simplyresting on the ledge by its own weight and frictionalcontact with the wall of the recess in the bed 2, all pressures being downward. Of course in lifting the cage out-or placing it in, the cainring 4 would first have to be removed and the web holders would also be removed; The against circumferential displacenient by web holders with which they however, would. not bedisturbed. The pressers as a series can be lifted out and shifted to occupy different positions'circuinferentiallyin respect to the needles The web holders slide in radial grooves in the bed 2, and in grooves inthe ring 13 held on top of the needle cylinder, .Any'preis'scr may be removed-and replaced. without disturbing the cage, this being done by simply exerting pressure upwardly on the desired a pair of pliers grasping the head band yielding for this be thrust down its lower end he band yielding for portion, the, spring into position individually, ing beveled and the spring Control of pressers.-I have provided a pressercam mechanism which will be automatically adjustable to set the presser cams \V hen theyare or moved outw rdly away from the circle of pressers, and in this position the yarn, as it shifts from one side of the yarnfinger tothe other in heel and toe work, will not be caught by the presser, and thus interfere with the proper-taking up of the yarn. The presser cams are moved-in and out in alternation. Referring to Fig. 8 the presser cam 10 at the left is in its innermost position ready to perform its function of operating the pressers iiuvardly, and the circle of presser-s is indicated at. 3. The presser cam at the right is in its outermost position The direction of rotation of the needlecircle is indicated by the arrow 3/. Now, when the direction of rotation is reversed, the cam ring upon which the presser cams are mounted is moved for a limited distance in the direction opposite'to the arrow, and until the stop 5 (lower one) strikes against the fixed post 6 to which the arm 17 supporting the yarn feed fingers m, 'm/ etc, are pivoted. This oscillation of the cam ring is usual in the Banner machine to properly position or get the lead of the web holder cam in relation to the stitch point. As soon as this reverse movement of the cam 90 ring begins totake place, the presser cams 10 at the left begin to'move outwardly due to the spring band exerting its forcethrough the pressers, and due to centrifugal force, and due also to the fact that the controlling lever 18 of the presser cam moves away from the surface of the bracket 17, or other part? with which itcontacted to move it to operative position. Therefore this presser cam will be at once retracted and will be out of the way of the strand of the-yarn at .2 extending from the fabric to the central yarn finger At thesame time the lever of the righthand presser cam will be brought agalnst the arnrl 'i' and this presser cami 1 5 will be moved inwardly to operative position to work against the pivoted pressers. From thisarrangement also it will be seen that when the bracket'l'T is lifted for any reason, and the yarn is withdrawn from work, both the presser cams will befree to. move outwardly under the action of the spring band acting through the pressers, and because of this there will be no"danger' of the work being pressed off from the needles should the machine be turned when the yarn finger bracket is'lifted- \VhatI claim is: i 1. In combination in a circular spring needle knitting machine, spring beard needles, pressers one for each needle, a ring or cage upon which said pressers are pivotally mounted, and a support for said cage "holding' the same freely removable whereby the said pressers can be removedor replaced as aseries, said pressers being individually removable, substantially as described.

2. In combination in a circularspring needle knitting machine, a needle cylinder, spring beard needles, instruments working to i.

dies radially of the cylinder, a tie-.g'igt'ar .nd ii'istrun'ient-s, presse s for the needle beards, onet-or each needle, and a cage or ring upon which the pressers are pivoted, said ring being removably carried :by the said bed to permit the pressers to be moved as one body, snbstantndh as de-,

scribed. 3. in combination a needle ,'lll1d0l. spring 'l'ieard needles, web holders, :1 bed for the webholders, supported on the needle c vl- 'nde'r and recessed ad acent said cylinder,

- ineedle vl'inder for said instruments to work in, individual pressers for the needles, and a cage or ring for said pressers consisting of a solid ring portion with a slotted portion exterior to said'solid ring portion and e.

ftending also above the plane of the upper edge thereof, the said pressers having their stems working and guided in the slotted' portion, and finding a bearing or fulcrum on the upper edge'ot' the solid ring portion, substantially as described. i

5. In combination a needle cylinder. spring beard needles, a bed surrounding the needle cylinder,instruments mounted in said bed and working between the needles, individual pressers for the needle beards, and a cage or ring for the said pressers consisting of a solid ring portion, the upper edge of which forms a fulcrum for the pressers, and a slotted portion to receive the stems of the pressers, and

a spring 'band for holding the pressers to said cage or ring. said pressers and the walls of said slotted portion being notched on their outer edges to receive. the said spring band. substantially as described. In combination a needle cylinder. spring beard needles. :1. bed surrounding the needle ci 'linder. instruments working between the needles and supported by said bed. individual pressei's tor the needle beards. a cage or ring removably mounted in said bed and carrying the said -iressers. said cage includinga slotted portion to receive aml guide the stems of the pressers. and a solid ring portion within the slotted portion forming a fulcrum bearing for the pressers to rock upoinsaid pressers having an unbroken ini'ier edge bearing on the plain face of said solid ring portion. substantially as described.

7. 111 combination in a spring needle knitting machine. a needle cylinder. spring beard needles, individual prcssci's for the needles,

and a cam for operating the pressers, yarn feed means. a movable support for said yarn feed means. whereby said feedineans may be removed from operative position, and means .t'or controlling the position of the presscr cam to render the same inoperative'when position. substantiallyas described.

H. ln' combination in 'a circular spring needle knitting machine. a needle cylinder. spring beard needles, individual prcsserstor the needle beards. a pair of presser cams to act alternately upon the pressers according to the. direction of movement of the needle circle, and automatically operating means for adjusting said prcsser cams respectively to and from operative position according to the direction of rotation ot sai'd needle circle. substantially as described.

9. In combination in a circular knitting machine. a needle cylinder having rotary and reciprocating movements. spring beard needles. individual pressers for the needles. a pair of presser cams. web holders. a shiftable web holder cam ring with means for autmnati ally shitting the same according to. the. direction of rotation of the needle cylinder. and automatimlly operating means for moving the'presser cams to and from op ei'ativ'e position as the cam ring shifted. said pressei' cams being movedalternately to operative position in respect to each other. and being alternately withdrawn from opcr ative position automatically. substantially as (ilescribed.

10. In combination in a circular knitting machine. a needle cylinder having rotary and reciprocating movements. spring beard IltQtllOS. individual presscrs tor the needle beards. spring means for retracting the individual pressei's from working position against the. beards. prcsser cams movable -iadi-ally to and from working position. web

holders. a shifting web holder cam ring. means for automatically shitting said cam ring according to the direction of rotation of the needle. cylinder. yarn feed means. a movable support for said yarn feed means to move the same to'and from operative position. and automatically operating means controlled by the said shifting Slll)])()l't-'t(') set the cams in operative position whereby. upon removal of the yarn feed means from operative position. the pi'esser cams will be rendered inoperative by the retraction of the pressers under their spring tension, substautially as described.

11. In combinatioi'i in a circular knitting machine. a needle cylinder, spring beard needles, presser means. a support therefor, yarn feed means, a support therefor ino able to and from o 'ierative position independciitly of. thc presser support. said PI'IGSSQL means being moved on its support and rendered ell'ective or ineffective by the movethe yarn feed means is moved from operative ment' or the yarn feed means and its support to operative or inoperative position, substantially as described.

12.111 combination in a circular knitting machine, a needle cylinder, spring beard needles, presser means, yarn feed means movable to and from operative position, and including a yarn guide and a movable support therefor, said presser being set in operative position automatically by the positioning of the yarn guide in operative position, and spring means for moving said presser meansto inoperative position, when the yarn guide is moved from operative position, substantially asdescribed.

13. In combination in a stocking knitting machine, a needle cylinder, spring beard needles, \veb holders, a shifting \veb holder cam ring, a pair of presser means, mounted on said shifting cam ring, and means for setting one presser means in operative position when the cam ring shifts in one direction, and for rendering the other presser inoperative and for. reversing the positions of the presser means when the web holder cam ring shifts in the other direction, sub stantially as described e 14. In combination in a-eircular knitting machine, yarn feed means, a needle cy1inder, spring beard needles, Web holders, a shifting \veb holder ring, presser cams mounted on the said cam ring one on each side of the yarn feed means, a movable support for the yarn feed means, the said presser cams being rendered-Z effective or ineffective alternately by the shifting of the 'cam ring and by parts-on the yarn guide GEORGE P. BOSWORTH,

Vitnesses JAMES L. JENKS, JOHN Lawson. 

